Amazon.com: FLAMMA FV03 Vocal Effects Pedal voice processor vocal Amplifier Stompbox Voice Changing Sounds Like Robot Male Female Baby with Delay Reverb Effects for Polishing Up Vocals Includes Guitar Playing : Musical
Review: TC-Helicon VoiceTone X1, Vocal Distortion Pedal - Singdaptive Blog
TC-Helicon VoiceTone X1 Megaphone and Distortion Vocal Effects Pedal